Polyaspartic acid complex for scale inhibitor
A technology for polyaspartic acid and composites, applied in the field of polyaspartic acid composites, can solve the problems of reduced reaction efficiency, easy agglomeration, and inability to complete the reaction, so as to improve the reaction efficiency and avoid adhesion. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0022] Example 1
[0023] To the three-necked flask equipped with a stirring bar and a thermometer, add 60 ml of water, then add 50 g of maleic anhydride (the name of the manufacturer is Changzhou Shuguang Chemical Factory, and the brand name is Shuguang), then heat to 60° C. in a water bath, and maleic anhydride is added. After dissolving, stir for 30 minutes, maintain the temperature of the system at about 60° C., stop stirring, and slowly add 50 g of ammonium bicarbonate (brand Huzhou Huijing Chemical Factory, purity 98.5%). Then, the temperature was gradually raised, stirring was started, and the reaction was carried out at a temperature of about 75° C. for 1 hour to obtain a white solid crystal of ammonium maleate. The ammonium maleate crystals were moved to a 500cm×300cm 304 stainless steel tray and thinned to a thickness of 3cm, and then the 304 stainless steel trays containing the ammonium maleate crystals were placed in a semi-closed container, which was heated externall
Example Embodiment
[0024] Example 2
[0025] Add 70 ml of water to the three-necked flask equipped with a stirring bar and a thermometer, then add 50 g of maleic anhydride (the name of the manufacturer is Changzhou Shuguang Chemical Factory, and the brand name is Shuguang), then heat to 55°C in a water bath, and maleic anhydride is added. After dissolving, stir for 30 minutes, maintain the temperature of the system at about 70° C., stop stirring, and slowly add 60 g of ammonium bicarbonate (brand Huzhou Huijing Chemical Factory, purity 98.5%). Then, the temperature was gradually raised and stirring was started, and the reaction was carried out at a temperature of about 65° C. for 1.5 hours to obtain a white solid crystal of ammonium maleate. The ammonium maleate crystals were moved to a 500cm×300cm 304 stainless steel tray and thinned to a thickness of 3cm, and then the 304 stainless steel trays containing the ammonium maleate crystals were placed in a semi-closed container, which was heated extern
Example Embodiment
[0026] Experimental example
[0027] Scale inhibition rate test plan:
[0028] The scale inhibition performance of polyaspartic acid should use the static calcium carbonate method (GB / T 16632-2008 "Calcium carbonate deposition method for the determination of scale inhibition performance of water treatment agents"). The conditions are that the calcium ion concentration is 0.240 mg / mL; the bicarbonate ion concentration is 0.732 mg / mL. 500ml glass bottle with condensation reflux tube, constant temperature at 80 ℃ for 10 hours. Titrate with EDTA solution, measure the calcium ion concentration in the solution after constant temperature, and calculate the scale inhibition rate. The calculation formula of the scale inhibition rate is:
[0029]
[0030] X 1 …Calcium ions (Ca after addition of polyaspartic acid) 2+ ) concentration, in mg / mL;
[0031] X 0 …Calcium ions (Ca) after the test without polyaspartic acid added 2+ ) concentration, in mg / mL;
[0032] 0.240…Calc
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap